S / sŭperdīmĭdĭus
adjective

sŭperdīmĭdĭus

fem. sŭper-dīmĭdia · neut. sŭper-dīmĭdium
of a number
half as much more
half as much more (i. e. that bears to another the ratio of 3 to 2), Mart. Cap. 7, § 761 sqq.